1942 data supplied by  B.O.D.C.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Dunkerque           190/001 RLR(1977) is 13.2m below Repere A(1974)
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 19-Oct-2000
Dunkerque acoustic gauge installed 1998. Data now supplied by Service Hydrographique et Ocean. de la Marine, Brest.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 24-Sep-2014
Using values from the SONEL website the latitude and longitude for Dunkerque have been revised.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 29-Sep-2014
Additional data points have been added. Because of this the whole dataset has been re-entered.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 15-Jul-2025
Updated the whole dataset to ensure they include all the historical data recovered recently by SHOM and the calculated monthly and annual means match those distributed by SONEL.